1 files changed, 54 insertions, 0 deletions

diff --git a/include/asm-x86/mach-default/mach_ipi.h b/include/asm-x86/mach-default/mach_ipi.h
new file mode 100644
index 000000000000..0dba244c86db
--- /dev/null
+++ b/include/asm-x86/mach-default/mach_ipi.h
@@ -0,0 +1,54 @@
+#ifndef __ASM_MACH_IPI_H
+#define __ASM_MACH_IPI_H
+
+/* Avoid include hell */
+#define NMI_VECTOR 0x02
+
+void send_IPI_mask_bitmask(cpumask_t mask, int vector);
+void __send_IPI_shortcut(unsigned int shortcut, int vector);
+
+extern int no_broadcast;
+
+static inline void send_IPI_mask(cpumask_t mask, int vector)
+{
+        send_IPI_mask_bitmask(mask, vector);
+}
+
+static inline void __local_send_IPI_allbutself(int vector)
+{
+        if (no_broadcast || vector == NMI_VECTOR) {
+                cpumask_t mask = cpu_online_map;
+
+                cpu_clear(smp_processor_id(), mask);
+                send_IPI_mask(mask, vector);
+        } else
+                __send_IPI_shortcut(APIC_DEST_ALLBUT, vector);
+}
+
+static inline void __local_send_IPI_all(int vector)
+{
+        if (no_broadcast || vector == NMI_VECTOR)
+                send_IPI_mask(cpu_online_map, vector);
+        else
+                __send_IPI_shortcut(APIC_DEST_ALLINC, vector);
+}
+
+static inline void send_IPI_allbutself(int vector)
+{
+        /*
+         * if there are no other CPUs in the system then we get an APIC send 
+         * error if we try to broadcast, thus avoid sending IPIs in this case.
+         */
+        if (!(num_online_cpus() > 1))
+                return;
+
+        __local_send_IPI_allbutself(vector);
+        return;
+}
+
+static inline void send_IPI_all(int vector)
+{
+        __local_send_IPI_all(vector);
+}
+
+#endif /* __ASM_MACH_IPI_H */